In the breadth of presentation and occasional insight into the underlying mathematics, there is much that will make this book essential for students of astronomy . 由于内容介绍广泛以及有时深入到基础数学的探讨，因而本书的许多内容对天文学专业大学生是十分有用的。
On the cortex . history , astronomy , it ' s not in there 历史和天文记录都没有提到它
On the cortex . history , astronomy , it ' s not in there 历史和天文记录都没有提到它
Tradition of chinese astronomy : the royal organization 中国古代天学之官营传统
X - ray astronomy has made impressive progress X射线天文学已取得了引人注目的进展。
Self - learning astronomy course nature of the universe 自学天文课程宇宙的本质
Local astronomy organizations or personal astronomy 本地公开天文团体或个人天文网页
